Square D HJA36060U44XAA 60A 3-Pole 600 V Circuit Breaker Potential Transformer

Meet the Square D HJA36060U44XAA — a robust 60 A, 3-pole, 600 V circuit breaker designed to protect three-phase electrical circuits with reliability. This model embodies Square D’s trusted engineering and is tailored for use in environments where potential transformer-based protection and metering are part of the protection strategy.

Why this 60A 3-Pole breaker stands out

• Three-phase protection — a 3-pole design that safeguards all three phases in industrial and commercial distribution setups.
• 600 V rating — suitable for a wide range of 3-phase electrical systems up to 600 volts.
• Genuine Square D part — part number HJA36060U44XAA, designed to integrate smoothly with Square D panels and enclosures.
• Potential transformer compatibility — engineered to support protection schemes that use potential transformers for monitoring, metering, and relay coordination.
• dependable protection — engineered to interrupt fault currents and shield motor loads and feeders from overloads.

Ideal applications

This breaker is well suited for three-phase distribution in industrial facilities, commercial electrical rooms, and panel boards that require reliable 60 A protection for each phase. It’s a practical choice for motor feeders, main-distribution panels, and systems where metering or relay protection relies on a compatible potential-transformer setup.

Key specifications

• Part number: HJA36060U44XAA
• Current rating: 60 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D

Practical guidance for selection and installation

Choose this model when your panel design calls for a genuine Square D 3-pole breaker with 60 A capacity and 600 V compatibility. Before installation, confirm panel compatibility and follow all applicable electrical codes. Use this device as part of a coordinated protection scheme that may include potential transformers for monitoring and protection relays, ensuring proper coordination with upstream and downstream protection.